JPS61119430A - Control constant adjusting device for automatic speed control device - Google Patents

Abstract

PURPOSE:To enable an accelerating performance to be accomplished as required by a driver of a car where an acceleration and deceleration are controlled based on a control constant by detecting an accelerating pattern for a case when the car speed is manually controlled allowing the control constant to be switched over. CONSTITUTION:When a car is driven, it is, first of all, determined by the output from a control switch 5 in a control circuit 4 whether or not the switch operation mode can be controlled by means of an automatic car speed control, if it is determined to be YES, it is determined next whether or not a car speed detected by a car speed sensor 6 is in excess of the reference one. If it is determined to be YES, an accelerating pattern is affirmed in such a manner that a real number 1 is added to the reading of a rapid acceleration counter when the opening of a throttle valve 3 exceeds the reference one for rapid acceleration, and the reading of the rapid acceleration counter is checked whenever the reading of a milage counter reaches the specified value. Then, a control constant for an acceleration control where the car speed is automatically controlled, is allowed to be selected depending on the result of the above said affirmation permitting the acceleration control to be effected based on the selected control constant.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic vehicle speed control device for a vehicle, and more particularly to a variable device that switches control constants to match a driver's driving pattern during manual operation.

[Conventional technology]

Conventionally, as shown in Japanese Unexamined Patent Application Publication No. 56-101036, a constant speed traveling device for original images of this type has been used to control the control operation of the error amplification control section and the 1IE1 of the vehicle speed storage section when an acceleration setting switch is turned on. The set vehicle speed memory contents are canceled, the vehicle is accelerated at a constant acceleration, and when the actual vehicle speed reaches a second set vehicle speed, the control operation of the error amplification control section is restored, and the second set vehicle speed is stored in the vehicle speed memory section. Some vehicles are equipped with an acceleration control means that, after being memorized, shifts to constant speed travel control based on the second set vehicle speed.

[Problems to be solved by the present invention]

According to such conventional technology, the acceleration when changing from the first set vehicle speed to the second set vehicle speed is constant, and no means is provided for selecting acceleration characteristics according to the driver's preference. Ta.

[Means for solving problems]

The present invention has been made in view of the above-mentioned points of view, and provides an automatic vehicle speed control device that performs acceleration/deceleration control of a vehicle based on control constants. To provide a control constant variable device for an automatic vehicle speed control device, which includes a control constant switching means for switching an acceleration control constant according to an acceleration pattern, and a detection means for detecting an acceleration signal and sending a signal to the acceleration pattern confirmation means. It is in.

[For production]

According to the above configuration, the acceleration signal detected by the detection means is input to the acceleration pattern confirmation means, and the acceleration pattern confirmation means sends a predetermined signal to the control constant switching means based on the acceleration signal.

The control constant switching means switches the acceleration control constant based on the predetermined signal, and outputs the control constant during acceleration control in the automatic vehicle speed control mode.

〔Example〕

The present invention will be explained below based on the accompanying drawings.

FIG. 1 is an electrical circuit diagram showing a preferred embodiment of the present invention. Reference numeral 1 denotes a potentiometer as a detection means, and the potentiometer 1 outputs a resistance value corresponding to the opening degree of a throttle valve 3 controlled by an actuator 2.

4 is a control circuit, which controls the actuator 2 by using the potentiometer 1, control switch 5, vehicle speed sensor 6, etc. as inputs. The control circuit 4 is
1110th port 41, 2nd engineering 10th port) 42, RA
It is composed of M43 and OPσ44, and additionally, the above-mentioned C! The PU 44 is equipped with a program as an acceleration pattern confirmation means and a control constant switching means.

The control switch 5 includes a set acceleration switch 51, a resume switch 52, a clutch switch 53, and a brake switch 54. For example, the set acceleration switch 51 accelerates while being pressed, and when released, stores the vehicle speed at that time. The resume switch 5.2 is a switch for resetting, for example, the vehicle speed automatic control state canceled by the on/off action of the clutch switch 53 or brake switch 540 to the memorized speed before the cancellation with a one-touch operation. This is a switch for

Further, 7 is a power switch, and 8 is a battery.Next, the operation of the preferred embodiment of the present invention will be explained with reference to the flowchart shown in FIG.

First, in step 301, initial settings are performed.

In step 302, each switch operation mode is read from the control switch 5 and the process proceeds to step 303.

In step 303, it is determined whether the switch operation mode read in step 302 requires automatic vehicle speed control. If YES, the process proceeds to step 304; if NO, the process proceeds to step 305.

In step 305, it is determined whether the vehicle speed detected by the vehicle speed sensor 6 is equal to or higher than the basic vehicle speed. If YES, the process proceeds to step 306; if NO, the process proceeds to step 310.

In step 306, it is determined whether the identification flag "F" for checking the acceleration pattern only once for each manual acceleration such as by operating the accelerator pedal is F-1, and if it is YKS. The process proceeds to step 310, and if No, the process proceeds to step 307.

In step 307, it is determined whether the opening degree of the throttle valve 3 detected by the input of the button yometer 1 is larger than the opening degree A [degrees] as the sudden acceleration judgment criterion, and YES is determined.
If so, proceed to step 308; if NO, proceed to step 312.

In step 308, the sudden acceleration counter is incremented by "1".
After the flag IP" is rewritten to IF-1 in step 309, the process proceeds to step 312.

On the other hand, in step 510, it is determined whether the opening degree of the throttle valve 3 is smaller than the opening degree B (degrees) as a freezing speed determination criterion. Proceed to. And step 311
After rewriting the flag F'' to ?-0, the process proceeds to step 312.

Next, in step 312, the mileage counter K"1" is incremented, and the process proceeds to step 313.

In step 313, it is determined whether the mileage counter has reached t[-] or more, and YE! If S, step 314
If the answer is No, the process returns to step 302.

In step 314, the sudden acceleration counter value is set to the second level α.
Determine whether it is 2 or more and determine Yl! : If S, the process advances to step 316; if No, the process advances to step 315.

In step 315, it is determined whether the sudden acceleration and force tab values are equal to or greater than the second level α, the smaller wc level α1, and Y! If it is i8, the process proceeds to step 317; if NO, the process proceeds to step 318.

Then, in steps 316, 517, or 318, the control constant during acceleration control during automatic vehicle speed control is switched to X, Y, or 2 levels, and the process proceeds to step 319.

In step 319, the mileage counter is reset;
Return to step 502.

To summarize above, steps 305 to 315 are steps as an acceleration pattern confirmation means, and when the vehicle speed is higher than a predetermined speed, for example, 60 [rllI/h] or higher, the throttle valve opening is determined to meet the criteria for determining sudden acceleration. degree A [degree]
If the value is above, the sudden acceleration counter '1'' is added, and the sudden acceleration counter value is checked every time the travel distance counter value reaches a predetermined value 1 [-).
This is a step to confirm whether the level is higher than or equal to α8 or lower.

Further, steps 316 to 318 are steps as a control constant switching means, and are steps for switching the acceleration control constant based on the confirmation result of the sudden acceleration counter value.

In the present invention, the detection means may detect an acceleration signal, the acceleration pattern confirmation means may detect the frequency of the acceleration signal, and the control constant switching means may switch the acceleration control constant based on the frequency or the like. Therefore, it goes without saying that a similar configuration can be achieved not only with the microcomputer of the preferred embodiment of the present invention but also with other electric circuits.

Further, the detection means may use a G sensor or a differential value signal of the output of a vehicle speed sensor.

[Effects of the present invention]

The present invention has excellent effects such as being able to automatically switch the acceleration characteristics in the vehicle speed automatic control state according to the driver's preference due to the above-mentioned configuration and operation.

[Brief explanation of the drawing]

FIG. 1 is an electrical circuit diagram showing a preferred embodiment of the present invention. FIG. 2 is a flowchart illustrating the operation of the preferred embodiment of the present invention. 1... Potentiometer, 2... Actuator, 3... Throttle valve, 4...
...-control circuit.

Claims (1)

[Claims] In an automatic vehicle speed control device that performs acceleration/deceleration control of a vehicle based on a control constant, an acceleration pattern confirmation means for confirming an acceleration pattern during manual operation of vehicle speed, and a control constant for switching an acceleration control constant according to the acceleration pattern. A control constant variable device for an automatic vehicle speed control device comprising a switching means and a detection means for detecting an acceleration signal and sending the signal to the acceleration pattern confirmation means.